

 viii Contents. 



PAGE 



On Radio-active Rain. By C. T. R. Wilson ...... 428 



On an Attempt to detect the lonisation of Solutions by the action of Light 



and Rontgen Rays. By J. A. Cunningham 431 



Note on the Dispersive Power of Running Water on Skeletons: with 

 particular reference to the Skeletal Remains of Pithecanthropus 



erectus. By W. L. H. Duckworth 434 



Reflexion and transmission of Light by a Charged Metal Surface. By 



P. V. Bevan 438 



The Histology of the Endosperm during Germination in Tamus com- 

 munis and Galium Tricorne (With Plate V.). By W. Gardiner and 



A. W. Hill 445 



Regeneration in Samia ailanthus. By H. H. Brindley . . . 458 



Some Notes on Variation and Protandry in Flabellum rubrum, and 



Senescence in the same and other Corals. By J. Stanley Gardiner 463 

 Note on the Influence of Ultra- Violet Radiation on the Discharge in a 



Vacuum Tube having a polished Zinc Electrode. By W. C. Baker . 472 

 Note on a general numerical connection between the atomic weights. By 



J. H. Vincent 477 



On the variation with the wave-length of the double refraction in strained 



glass. By L. N. G. Filon 478 



The Coral Reefs of Zanzibar (With Map). By C. Crossland . . 493 



On Induced Radio-activity. By Prof. J. J. Thomson . . . . 504 

 On the increase in the electrical conductivity of air produced by its 



passage through water. By Prof. J. J. Thomson .... 505 

 Proceedings at the Meetings held during the Session 1901 — 1902 . . 507 



Periodical Publications received by the Society 515 



Index 527 



PLATES. 



Plate I. To illustrate Mr Barcroft's paper 

 Plate II. To illustrate Mr Skinner's paper 

 Plate III. To illustrate Mr Shipley's paper . 

 Plate IV. To illustrate Mr Menon's paper . . . 

 Plate V. To illustrate Messrs Gardiner and Hill's paper 

 Plate VI. To illustrate Mr Crossland's paper . 



PAGE 



10 

 36 

 213 

 417 

 455 

 493 



